Version girl's not finished (4)

I believe the answer is:

edit

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'version girl's not finished' is the definition.
I can't tell whether this definition defines the answer.

'girl's not finished' is the wordplay.
'girl' becomes 'Edi'.
'not finished' becomes 't' (I can't justify this - if you can you should believe this answer much more).
'edi'+'t'='EDIT'

Can you help me to learn more?

(Other definitions for edit that I've seen before include "Manage a newspaper" , "Prepare (material) for publishing" , "Supervise the publication of" , "Literally, arrange" , "What our boss does" .)

I've seen this clue in The Sun.

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